.source_data_container {
  .source_data_content {
    .source_data_item {
      width: 16vw;
      height: 38vh;
      margin: 0 1.46vw;

      .item-bg {
        background-position: center center;
        background-repeat: no-repeat;
        background-size: contain;
      }

      .api_bg {
        background-image: url('https://fengnull.gitee.io/picture_house/page/API.png');
      }

      .sql_bg {
        background-image: url('https://fengnull.gitee.io/picture_house/page/SQL.png');
      }

      .csv_bg {
        background-image: url('https://fengnull.gitee.io/picture_house/page/CSV.png');
      }
      .etl_bg {
        background-image: url('https://fengnull.gitee.io/picture_house/page/ETL.png');
      }

      .mask {
        background-color: rgba(0, 0, 0, 0.3);
        top: auto;
        height: 50px;
        float: left;
        width: 16vw;

        .content {
          top: auto;

          .item-title {
            height: 50px;
            line-height: 50px;
            font-size: 1.171vw;
          }

          .item-desc {
            line-height: 28px;
            padding: 0 23px;
            height: 136px;
          }
        }
      }

      &:hover .mask {
        height: 220px;
      }
    }
  }
}
